Middlings-purifier



(No Mbdel.)

J. W. WILSON.

MIDDLINGS PUBIFIER.

Patented May ZZ, 1883.

INVENTOR WITNESSES ATTORNEY N. PETERS. Phokoutmgramr. wnhingtm 11C.

' lU rrEp STATES PATE T OFFICE.

' JosErn W. WILSON, or WYANDOTTE, KANSAS.

MIDD LlNGS-PURlFlER.

SPECIFICATION forming part of Letters Patent No. 278,207, dated May 22, 1883,

Application filed September 1, 1882. (No model.)

To all whom it may concern:

Be it known that I, JOSEPH W. WILsoN, ot' Wyandotte, \Vyandotte county, Kansas, have invented a newand Improved Middlings-Puritier, of which the following is a full, clear, and exact description.

My invention relates to improvements in middlings-purifiers; and it consists in the peculiar construction and arrangement of parts, as hereinafter fully described, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming part of this-specification, in which similar letters of reference indicate corresponding parts in both the figures.

Figure 1 is a longitudinal sectional elevation of my improved middlings-puritier. Fig. 2 is a perspective viewof the feeding apparatus.

Arepresents the bolt or sieve, located in chamber B below the suction-chamber C, said bolt being mounted on the rollersE ofthe reciprocating frame If, to which the power is applied from the shaft Gr by the connecting-rod H. The said reciprocating frame F is also mounted on rollers E, said rollers being at tached tothe sides of the purifier-frame. My object in running the frame F on rollers instead of having it supported by spriugs is to enable me to have the middlings move from the head' end of the bolt to thelower or tail end of the bolt on a perfect plane, entirely free bolts or sieves suspended by springs.

of rising and falling motion common to all It will be understood that by this sliding action I am enabled to effect a much more perfect separation of the middlingsand impurities than is possible by the rocking or rising-and-falling motion heretofore in use.

In order to regulate the air-currents produced in the bolt-chamber B by the fan I for carrying off the matters tobe separated thereby, I arrange the series of chutes J and valves K between said chambers B and 0, connecting the valves in several series of two or more valves together byv rods L with adjustinglevers M, said levers being outside of the chest, where they can be shifted readily at any time to regulate the openings and vary them along the chest as required in the different parts for suiting the currents of air to the difl'erent localities of the machine. The levers M are attached to the pivot of one of the valves in any approved conductor, for delivery into the dust-room or elsewhere.

For feeding the middlings to the bolt I have a shoe, consisting of bottom Q, sides R; back- S, and feed-board '1, attached to the head of the-bolt, as shown in Fig. 1 onto which the middlings are'delivered from the stationary box 'V, attached to the frame of the boltabove said shoe, and into which the middlings are delivered at V from a spout. The feed-board T is made a little higherinthe middle than at the sides of the shoe, to insure the spreading of the middlings to the sides, and the boxVis provided with notched lower edges, X, on the side next to said feed-board, to facilitate the feeding'ofthe middlings in regular measure from side to side of the bolt by breaking the lumps and acting as a kind of rake to distribute the matters evenly to the feed-board. These notched edges arealso raised higher along the middle of the box than at the sides, and they are also adjustably attached to the box by thumb-screws Y, or other approved means, so that they can be adjusted to regulate the volume of the middlings as desired. They areloeated a little back of the feed-board, to cause the middlings to first pass under them and then how along a short level before arriving atthe place of falling over the feed-board. A ledge orchute, Z, at the back of the box prevents the escape of the middlings thereat. Similar or other approved contrivance may be employed to prevent the escape of the middlings over the sides R of the shoe. It will be readily understood that by this improved feeding-shoe a very uniform action will be secured, and it will also be seen that by the method now employed to regulate the action of the air the best results will b obtained from the fan-blast.

y I am aware that a system of chutes andvalves arranged between the bolt and suctionchambers has heretofore been employed. I am also aware thata sieve mounted on rollers is old, and I am further aware that a feeding- 2 erase? 2. The combination, with the feeding-shoe Q R S, having the feed-board T, made higher in the middle and descending to the sides, of [5 the box V and the notched edges X, vertically adjustable on said box, substantially as and for the purpose set forth.

JOSEPH 7. WILSON.

Witnesses:

II. E. GATES, S. A. NORDYKE. 

